Hydrated lime is popular in various industries because of its non-acid nature and general capability as a basis for neutralization. It balances pH and removes Colour and odour in water in water treatment as well as in drinking water and industrial effluent treatment plants. In agriculture, hydrated lime improves the soil by regulating the pH levels needed in order to produce healthy crops. It has an essential function in pollution control by purifying industrial discharges, particularly in desulfurization of flue gases. In the construction industry, hydrated lime develops mortar and plaster to increase their better performance and durability. Also, it is applied as a food product, primarily in the process of nixtamalization of corn, so it is universal and necessary.